function loader(source) {
    console.log(this.data);//loaderContext
    /* //当我调用 async方法的时候，可以把这个loader从同步执行变成异步执行
    let callback = this.async();
    console.log('post2');
    setTimeout(()=>{
        callback(null,source + '//post2');
    },5000); */
    return source + '//post2'
}
/* loader.pitch = function (remainingRequest, previousRequest, data) {
    //给data赋值
    data.age = 100;
    console.log('post2 pitch');
} */
module.exports = loader;